Usoro, ọrụ na arụmọrụ PE gbanwere

Igwe mmịpụta plastik PE bụ otu n'ime plastik ise a na-ejikarị eme ihe. Ọ bụ resin thermoplastic nke e ji polymerization nke ethylene monomer mee. Ọ naghị esi isi ma ọ naghị egbu egbu, ọ dị ka wax, ọ na-eguzogide okpomọkụ dị ala ma na-eguzosi ike na kemịkal.

Tinyere nke a, PE nwere obere mmiri na-amịkọrọ, ọ naghị agbaze na ihe mgbaze nkịtị na okpomọkụ ụlọ, ma nwee mkpuchi eletriki dị mma. Dabere na usoro polymerization, ibu molekul, na nhazi yinye, a na-ekewa ya n'ime polyethylene dị elu (HDPE), polyethylene dị ala (LDPE), na polyethylene dị ala. Polyethylene dị njupụta (LLDPE) na polyethylene dị oke elu (UHMWPE).

N'ihi ojiji ya sara mbara, a na-ejikarị PE eme ihe mgbe emezigharịrị ya, dịka ndị a:

1. Tinye resin LDPE, ihe na-egbochi ihe mgbochi, na carbon ojii n'ime igwekota ngwa ngwa, gwakọta ma gwakọta nke ọma, wee jiri ihe na-ewepụta ihe wepụ ma tinye granulate. Okpomọkụ gbọmgbọm nke ihe na-ewepụta ihe bụ 150~160℃, ọsọ injin bụ isi bụ 600~800 r/min. Ị nwere ike nweta ihe PE nwere ikike olu ≤10²Ω.cm, ikike elu ≤10³Ω, ebe dị nro Vicat >81℃, na ihe ndị na-egbochi ihe mgbochi.

2. Tinye resin HDPE, ihe na-egbochi ihe mgbochi, mmanụ ọcha, na ihe na-agba agba n'ime igwekota ngwa ngwa, gwakọta ma gwakọta ya ka usoro nkwadebe ahụ bụrụ otu, wee jiri ihe na-ewepụta ihe wepụ ma tinye granulate. Mgbe ị bechara, kpọọ nkụ ma nwalee ihe nlele ahụ, ikike olu ya bụ ≤10²Ω·cm, ike nrụgide ahụ bụ 23MPa, ike ndọda bụ 20MPa, ọ nwekwara ihe ndị na-eme ka ọ gbanyụọ onwe ya ma ọ dịghị mfe ijide ọkụ.

3. Tinye resin HDPE (100), polyethylene elastomer (CPE) (10-20), carbon black (15-20) na ọnụọgụ ihe mgbakwunye ndị ọzọ kwesịrị ekwesị na okpomọkụ nke ihe dị ka 155C, ma gbanwee anya roller ahụ na igwe ọkụ mepere emepe nke 1mm., tinye HDPE, CPE, carbon black na ihe mgbakwunye n'usoro, gwakọta ya maka nkeji 8 ruo 10, gwakọta ya nke ọma, jiri pitch roller 0.5mm gafere ugboro atọ iji wepụ mbadamba ndị ahụ, jụọ oyi ma gwerie ya, wee jiri ihe extruder wepụ ya ma gwerie ya.

Enwere ike inweta ihe PE nwere ezigbo ihe mgbochi na-adịghị agbanwe agbanwe yana ihe anụ ahụ na nke mekaniki dị mma. Mgbe ọnụọgụ nke carbon ojii na-eduzi ihe karịrị akụkụ 20, iguzogide elu nke ihe ahụ fọrọ nke nta ka ọ ghara ịgbanwe, mana ike mmetụta ya na ogologo ya na-ebelata nke ukwuu mgbe ọ gbawara.

Mgbakwunye nke polyethylene elastomer nwere chlorine nwere ike ọ bụghị naanị ibelata ọnụọgụ carbon ojii, kamakwa ọ na-eme ka ihe mejupụtara ya nwee ihe ndị ka mma na-egbochi mmebi (nguzogide elu na-ebelata ruo ihe dị ka 1x107Ω) na ihe ndị na-emetụta ya.

4.HDPE, methylbenzene glycol, DBP, mmanụ soybean, triethanolamine, mmanụ ọcha, ntụ ọka ọka, dicumyl peroxide, propylene glycol adipate, tinye ihe ọ bụla e ji mee ihe n'ime igwekota ngwa ngwa dịka usoro nhazi si dị, wee gwakọta ya nke ọma. Tinye ya n'ime igwekota dị n'ime maka ịchacha ya na okpomọkụ nke 170 ~ 175C na ọsọ ntụgharị nke 900 ~ 950r/min. A na-eji ihe na-agwakọta ihe a gwakọtara agwakọta mee ihe n'ime ya iji nweta mkpụrụ osisi. A na-etinye mkpụrụ osisi ahụ n'ime tankị mmiri ka ha dị jụụ, wee kpọọ nkụ na okpomọkụ nkịtị.

Enwere ike nweta ike nrụgide ahụ bụ 31~37MPa, ogologo oge mgbe ezumike ahụ bụ 15%~18%, arụmọrụ ike mmetụta ahụ bụ 3.1~4.0kJ/m, ike mgbagọ ahụ bụ 45~49MPa, na ọnụego njide ike mmetụta foto nke awa 500 bụ 100%. Ihe nwere ike iguzogide olu (4.4~4.8)x10^(7)Ω.cm.

4. Gwakọta resin HDPE, ihe na-agbanwe agbanwe butene-ethylene copolymer, ihe na-eduzi ihe carbon ojii, ihe na-ejikọ silane KH-570, ihe na-ejupụta CaCO3, wax PE na-agbasa, mmanụ HSt, na ihe na-eme ka ihe sie ike CaSt dịka usoro nhazi si dị. Rịba ama, a ga-ebu ụzọ jikọta ihe na-ejupụta ihe ahụ. Wee tinye ya na igwekota dị n'ime maka ngwakọta dị n'ime. Mgbe agbasasịrị ya kpamkpam, nyefee ya na ihe na-eme ka ihe na-esi ísì ụtọ maka mmịpụta na granulation. Ị nwere ike nweta ihe nwere nguzogide elu nke 10^(8)Ω, nguzogide olu (20℃) nke 1x10²Ω·cm, ike nkwụsịtụ nke 16.5MPa, na ogologo nke 385%.